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Cloud [144]
3 years ago
14

What type of dominance is it when BOTH alleles for a trait are expressed in offspring?

Biology
1 answer:
Ipatiy [6.2K]3 years ago
5 0

Answer:

Codominant

Explanation:

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MHC class II will interact with a TCR and
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Answer:

CD4 on the surface of helper T-cells.

Explanation:

MHC class II ( major histocompatibility complex) molecules are processed from the exogenous source. The presentation of  antigen on cells are important for the adaptive immune response.

MHC class II interact with CD 4 present on the surface of T helper cells. This interaction is important for the generation of an immune response. Helper T cells can release cytokines and can perform phagocytosis.

Thus, the correct answer is option (C).

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Which process can be primarily affected by gallbladder disease ?
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Embryological evidence suggests that the echinoderms are closely related to
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6 0
3 years ago
What levels of protein structure would be affected if all hydrogen bonding interactions were prevented? check all that apply?
fgiga [73]

The proteins exhibit four levels of organization:  

1. Primary structure: It refers to a sequence of amino acids join together by the peptide bonds to produce a polypeptide chain.  

2. Secondary structure: It is a localized twisting of the polypeptide chain by producing a hydrogen bond. Two types are formed, that is, the alpha helix and beta pleated sheet.  

3. Tertiary structure: It refers to the three-dimensional composition of a polypeptide chain. The folding is not regular as it is in secondary composition. It produces ionic bonds, hydrophobic interactions, disulfide bond, and hydrogen bond amongst the polypeptide chains.  

4. Quaternary structure: It comprises an amalgamation of two or more polypeptide chains that functions as a single functional unit. The bonds are identical as in tertiary composition.  

Thus, the levels of secondary, tertiary, and quaternary protein structure would get affected if all the hydrogen bonding associations were inhibited.  


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Protists are a group of unicellular organisms that are eukaryotic. However, they are a diverse group, with some of the members o
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Answer:chloroplasts and cellulose cell wal

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